Refurbished HP Q8055A Optional Tray 3 500 sheet feeder This is the complete feeder assembly with the paper tray simply lift your laserjet 4100 atop of this feeder and begin printing. Paper tray is adjustable from 8.5 11 to 8.5 14 paper tray is refurbished with new rollers and has a 30 day warranty This is the paper tray and the base assembly Compatible with all hp laserjet 4100 series printers.